Wireless charger



2.1 is a top perspective view of the wireless charger;

2.2 is a top plan view thereof;

2.3 is a front view thereof;

2.4 is a right side view thereof;

2.5 is a left side view thereof;

2.6 is a rear view thereof; and

2.7 is a bottom plan view thereof.

In the reproductions, the broken lines are the purpose of illustrating portions of the wireless charger and forms no part of the claimed design. 

CLAIM I claim the ornamental design for a wireless charger, as show and described. 